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500 Wsg (20 inch) Sand Dredging Pump and Gravel Dredger Pump

China 500 Wsg (20 inch) Sand Dredging Pump and Gravel Dredger Pump, Find details about China Sand Pump, Dredging Pump from 500 Wsg (20 inch) Sand Dredging Pump and Gravel Dredger Pump

Model NO.
500WSG
Trademark
Naipu
Transport Package
Packed with Wooden Box or as Customer′s Request
Specification
CE, ISO, SGS
Origin
Shijiazhuang, China
HS Code
8413701090
Model NO.
500WSG
Trademark
Naipu
Transport Package
Packed with Wooden Box or as Customer′s Request
Specification
CE, ISO, SGS
Origin
Shijiazhuang, China
HS Code
8413701090
 500 WSG (20 inch) Sand Dredging Pump and Gravel Dredger Pump

Basic Information:

Name: NP-WS Dredging Gravel Pump
Pump Type: Centrifugal
Drvie Type: DCZ
Power: Motor / Diesel
Discharge Size: 100-1000mm
Capacity: 180-25000(m³/h)
Head: 25-76(m)

Application and Feature

Naipu® NP-WS dredging pump is single-stage single-suction cantilever horizontal centrifugal pump with advantages of light weight ,good wear-resistant ,super dredging performance ,perfectly suited for the dredge on the whole construction ,high multiple economy benefits and so on .It throughout meets requirements of the dredge to dredging pumps .The pump mainly consists of the pump head , gearbox specifically for the dredging pump ,high elastic coupling and supervisor system of the driving device for the dredge.

Typical Applications---

Suction Hopper Dredging
Constructional Material
Sand gravel processing
Barge Loading
Sand Reclamation

NP-WS Dredging  PUMP PERFORMANCE PARAMETERS
 
typeCapacity (M3/H)Head (M)Speed (r/min)Efficiency(%)Inlet Dia (mm)Outlet dia.
 
(mm)		NPSHR
(M)		Max dia of flowed particleWeight(T)
fivethree
100 WS180-25025-451000-140050-58150100<3.550820.5
150WS250-55020-401200-140058-60200150<4761271.1
150WSG350-70040-65800-98068-71200150<3.5841401.9
200WS350-70020-45700-98060-65250200<4.51051782.3
200WSG550-100040-65700-85070-72250200<41081803.2
250WS700-110020-45500-75065-70300250<41322204.5
250WSG900-150040-60500-65070-74350250<4.5861444.6
300WS1100-180020-40400-60065-68350300<4.51442415.5
300WSG1500-220030-65400-55074-78450300<41442418.0
350WSG2000-300040-65400-55074-78450350<41472458.8
450WSG3000-400035-67350-50076-80600450<4.512525412
500WSG4000-550040-65350-45078-80650500<4.815025017
600WSG5000-900055-80320-40081-85650600<616022035
700WSG8000-1200060-85280-38083-85750700<618028050
800WSG10000-1500050-70260-36079-80850800<620030058
900WSG120000-1900050-75280-33083-85950900<621032085
1000WSG16000-2500023-76180-29085-8711001000<6230350126

Sand Dredge Pump Feature:
1. Dredge pump suitable for dredging ship:

The structure of 200WS-500WS type pumps are single-casing, single-stage, single-suction, cantilever and horizontal. According to the connection with the gear box, two structures can be offered: Self-carrying bracket and pump-box assembly. The lubrication for the bracket is grease or thin oil.
The structure of 600WSG-1000WSG type pumps are double-casing, single-stage, single suction, cantilever and horizontal. It has self-carrying bracket. Lubrication is forced thin oil lubricating. The double-casing design can ensure the liner can work till it is worn out, and if the liner crack, water can not enter into the pump.

2. Easy to Disassembly and Installation, Convenient Maintenance:

WSG type pump adopts front-disassembly structure in favor of easy disassembly and maintenance. Also it is equipped with special disassembly tools for each different part according to each parts features.
The standard trapezoidal quadruple thread is adopted to connect the impeller and shaft, which not only transmits strong torque but also is easy to disassembly.

3. Good Performance on NPSH:

The good NPSH performance of WN type pump ensures the strong suction ability as well as deeper dredging depth and denser dredging concentration.

4. Good Wear-resistant Performance, Long Service Time of Wet Parts:

Wet parts of this kind of dredging pump-impeller, liner and front & back liner plate are adapted anti-wear cast iron alloy whose hardness is more than 58HRC, who has both strong anti-attack feature and higher resistance wear and resistance abrasion features.

5. Reliable Shaft Sealing Without Leakage:

The shaft of 200-500WSG dredging pump uses the mechanical sealing or stuffing sealing or mechanical-stuffing compound sealing.
The shaft of 600-1000 WSG dredging pump adopts spiral sleeve L (shape) rubber sealing device that consists of three L sealing ring and one special thread shaft sleeve
Possible Faults And Removal
FaultsReasonRemoval
Pump fails to discharge any liquidAir leaking into suction or gland
Incorrect direction of pump rotation & impeller worn
Suction pipe blocked 		Sealed leakage
Check direction of rotation and replacing impeller 
Removal blockage 
Shaft power consumption is excessiveGland excessively tightened against packing rings
Rotating component rubbing on a stationary part
Bearing worn
Drive belt tension too tight 
Flow rate too large
Pump speed and ratio too high
Misalignment or unparallel of drive shaft and pump shaft		Loosen gland bolts
Removal the rubbed part
Replace the bearing
Adjusting belt
Modifying the pump duty and speed
Adjusting drive and pump shaft
 
Bearing is over heating Lubricants to much or less
Containing impurity in the lubricant 
Bearing worn 
 		Lubricant as requirement
Replace new lubricant
Replace new bearing
Bearing has short timeMisalignment or unparallel of drive and pump shaft
Shaft bent
Impeller unbalanced due to wear
Foreign object entered into the bearing or insufficient lubrication
Incorrect procedure followed in fitting bearing		Adjusting drive and pump shaft
Replacing shaft
Removal rubbing and replacing new impeller
Clean the bearing 
Replacing or refitting the bearing
Excessive leakage from stuffing boxPacking rings excessive worn
Shaft sleeve worn
Dirty sealing water		Replace new packing rings
Replace shaft sleeve.
Change clean sealing water
Pump vibrates Or is noisyBearing worn 
Impeller unbalanced
Air entered into suction pipe or blocked
Flow rate no-uniform and pump not primed		Replace by new bearing 
Replace by new impeller
Discharge air and remove block
Improve on the pump feeding.
 
   
Contact Us

 ShiJiaZhuang NaiPu Pump Co.,Ltd
Contact person :Kitty Liu
What App /Mobile :+86-13032609126
Shijiazhuang, Headquarters
Add.:No.368, Xinshi North Road, Shijiazhuang, Hebei Province, China
     
If you are intrested in sand suction pump, please do not hesitate to contact us!

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